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  • × theme_ss:"OPAC"
  • × year_i:[1980 TO 1990}
  1. Pejtersen, A.M.: Implications of users' value perception for the design of a bibliographic retrieval system (1986) 8.92 
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  2. Goodstein, L.P.; Pejtersen, A.M.: ¬The Book House : System functionality and evaluation (1989) 8.92 
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